Launch day needs more than one video: a wide one for your listing, and vertical and square versions for everywhere you announce it. LaunchTrailer makes the whole set from your product page, so you can spend launch week on the launch.
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People watching a launch video want to see what the product does. Each video opens on a hook, then moves through your real interface with a cursor, then your main features and call to action.
Every video has its own instrumental track and effects timed to the action. The message is also in large on-screen text, so it still works muted.
Download the 16:9 version. Product Hunt listings have generally embedded videos from YouTube rather than taking a direct upload, so upload it there and paste the link. Check the current submission form, since these details can change.
Guides commonly suggest from under a minute to about 90 seconds, and Product Hunt publishes no single required length that we know of. LaunchTrailer videos run 25 seconds, which suits a teaser that shows the core idea quickly. If you need a full walkthrough, record that separately and link it.
Use the wide 16:9 version for your listing, because that is the usual shape for an embedded player. Use the 9:16 version for TikTok, Reels and Shorts, and the 1:1 version for feeds such as LinkedIn. LaunchTrailer lays out each format separately instead of cropping one video.